gdragon122000 gdragon122000
  • 10-12-2020
  • Mathematics
contestada

What is the solution of the system? Use any method.

3x + 2y = 7
y = –3x + 11

Respuesta :

Аноним Аноним
  • 10-12-2020

Answer:

[tex](5,-4)[/tex]

Step-by-step explanation:

SOLVE BY SUBSTITUTION:

STEP 1: Replace all occurrences of [tex]y[/tex] with [tex]-3x+11[/tex] in each equation.

[tex]-3x+22=7\\y=-3x+11[/tex]

STEP 2: Solve for [tex]x[/tex] in the first equation.

[tex]x=5\\y=-3x+11[/tex]

STEP 3: Replace all occurrences of [tex]x[/tex] with [tex]5[/tex] in each equation.

[tex]y=-4\\x=5[/tex]

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